Insulin Lispro vs DPDPE
Head-to-head comparison of Insulin Lispro (Insulin lispro (B28-Lys, B29-Pro human insulin analog)) and DPDPE ([D-Pen2, D-Pen5]-enkephalin) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Insulin Lispro | DPDPE |
|---|---|---|
| Category | Diabetes & Metabolic | Pain Management |
| Full Name | Insulin lispro (B28-Lys, B29-Pro human insulin analog) | [D-Pen2, D-Pen5]-enkephalin |
| Molecular Weight | 5808.0 Da | 645.79 Da |
| Half-Life | About 1 hour | 15-60 minutes in plasma |
| Amino Acids | 51 | 5 |
| Typical Dose | 0.05-0.2 U/kg per meal | 0.01-1 ug per animal |
| Route | Subcutaneous | Intrathecal / intracerebroventricular |
| Purity | ≥98% | ≥98% |
| Studies Count | 12000 | 800 |
| Research Status | Approved | Pre-clinical |
Insulin Lispro Benefits
- ✓Rapid postprandial glucose control
- ✓Flexible premeal timing
- ✓Predictable onset of action
- ✓Useful in basal-bolus regimens
DPDPE Benefits
- ✓delta-opioid selectivity
- ✓improved conformational stability
- ✓analgesic receptor mapping
- ✓useful in chronic pain models
Insulin Lispro Dosing
Inject SC 0-15 minutes before meals|Adjust dose to carbohydrate intake and premeal glucose|Often paired with a basal insulin
DPDPE Dosing
Intrathecal 0.01-1 ug per animal|Intracerebroventricular 0.01-0.5 ug per animal|In vitro 0.1-20 nM
Insulin Lispro Side Effects
- ⚠Hypoglycemia
- ⚠Weight gain
- ⚠Injection-site reactions
DPDPE Side Effects
- ⚠sedation
- ⚠nausea-like opioid effects
- ⚠tolerance with repeated dosing
Research Overview
Insulin Lispro
Clinical studies show faster onset and shorter duration than regular insulin, improving post-meal glucose control. It is a standard comparator in diabetes pharmacology and closed-loop insulin-delivery research.
DPDPE
DPDPE is widely cited in opioid pharmacology because it helped establish the functional role of delta-opioid receptors in pain control. Its constrained structure is also used to explore how peptide cyclization changes potency, stability, and tissue selectivity.
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